Invalid syntax within Lambda using Python 3.6 to pull from DynamoDB - python-3.x

Question

I can't, for the life of me, figure out what is wrong with the following four lines of code.
def getAssetExistance(asset, element, table):
dynamoTable = dynamo.Table(table)
response = dynamoTable.query(KeyConditionExpression=Key(element).eq(asset)
return bool(response)
I am running this through aws Lambda and the log on cloudwatch is telling me the error is on the return line. This is the error (line 24 is the return line):
Syntax error in module 'lambda_function': invalid syntax (lambda_function.py, line 24)
In case this helps at all, here is the rest of the code:
################################
# Slack Lambda handler.
################################
import boto3
import os
import logging
import urllib
# Grab data from the environment.
BOT_TOKEN = os.environ["BOT_TOKEN"]
ASSET_TABLE = os.environ["ASSET_TABLE"]
REGION_NAME = os.getenv('REGION_NAME', 'us-east-1')
dynamo = boto3.client('dynamodb', region_name=REGION_NAME)
# Define the URL of the targeted Slack API resource.
SLACK_URL = "https://slack.com/api/chat.postMessage"
def getAssetExistance(asset, element, table):
dynamoTable = dynamo.Table(table)
response = dynamoTable.query(KeyConditionExpression=Key(element).eq(asset)
return bool(response)
def lambda_handler(data, context):
# Slack challenge answer.
if "challenge" in data:
return data["challenge"]
# Grab the Slack channel data.
slack_event = data['event']
slack_user = slack_event["user"]
slack_text = slack_event["text"]
channel_id = slack_event["channel"]
slack_userID = slack_user["ID"]
slack_reply = ""
# Ignore bot messages.
if "bot_id" in slack_event:
logging.warn("Ignore bot event")
else:
# Start data sift.
if slack_text.startswith("!networth"):
slack_reply = "Your networth is: "
elif slack_text.startwith("!price"):
command,asset = text.split()
slack_reply = "The price of a(n) %s is: " % (asset)
elif slack_text.startwith("!Addme"):
if not getAssetExistance(slack_userID, userID, ASSET_TABLE):
slack_reply = "Adding user: %s(%s)" % (slack_user, slack_userID)
dynamo.update_item(TableName=ASSET_TABLE,
Key={'userID':{'S':'slack_userID'},
AttributeUpdates= {
'resources':{
'Action': 'ADD',
'Value': {'N': '1000'}
}
}
)
else
slack_reply = "User %s(%s) already exists" % (slack_user, slack_userID)
# We need to send back three pieces of information:
data = urllib.parse.urlencode(
(
("token", BOT_TOKEN),
("channel", channel_id),
("text", slack_reply)
)
)
data = data.encode("ascii")
# Construct the HTTP request that will be sent to the Slack API.
request = urllib.request.Request(
SLACK_URL,
data=data,
method="POST"
)
# Add a header mentioning that the text is URL-encoded.
request.add_header(
"Content-Type",
"application/x-www-form-urlencoded"
)
# Fire off the request!
urllib.request.urlopen(request).read()
# Everything went fine.
return "200 OK"
Hopefully I am doing something dumb; I am pretty new to all this. Any help is much appreciated it. Thanks!

Answer 1

You skipped closed round bracket in this line:
response = dynamoTable.query(KeyConditionExpression=Key(element).eq(asset)
replace this line by:
response = dynamoTable.query(KeyConditionExpression=Key(element)).eq(asset)